57144459293 has 4 divisors (see below), whose sum is σ = 57147953148. Its totient is φ = 57140965440.

The previous prime is 57144459283. The next prime is 57144459329. The reversal of 57144459293 is 39295444175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37334741284 + 19809718009 = 193222^2 + 140747^2 .

It is a cyclic number.

It is not a de Polignac number, because 57144459293 - 2¹⁴ = 57144442909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57144459283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1722278 + ... + 1755143.

It is an arithmetic number, because the mean of its divisors is an integer number (14286988287).

Almost surely, 2^57144459293 is an apocalyptic number.

It is an amenable number.

57144459293 is a deficient number, since it is larger than the sum of its proper divisors (3493855).

57144459293 is a wasteful number, since it uses less digits than its factorization.

57144459293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493854.

The product of its digits is 5443200, while the sum is 53.

The spelling of 57144459293 in words is "fifty-seven billion, one hundred forty-four million, four hundred fifty-nine thousand, two hundred ninety-three".